That's all wrong. The primary purpose of the bloop tube is to change the sound signature to be closer to a bloop. The other stuff about sight radius and so on, is just a happy byproduct.
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Rimfires do better without 30 inch barrels but rimfire shooters want longer sight radii too. And some have tuners built in too.How about rimfire? Seeing a lot of them used lately. Thinking about one myself.
